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Analog Devices Inc./Maxim Integrated MAX16061BTP+T
- Part No.:
- MAX16061BTP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
MAX16061BTP+T.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,152
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Product details
Overview
MAX16061BTP+T from Maxim Integrated is a 1% accurate, hex-voltage microprocessor supervisor IC in a 20-pin thin QFN (4mm × 4mm) package, monitoring six independent supply rails (including fixed 3.3V/2.5V/1.8V and adjustable down to 0.4V), with open-drain outputs, internal 30µA pullups, 140ms min reset timeout, and integrated watchdog timer (1.6s typ). It serves as system-level power integrity guardian in multivoltage ASICs and industrial servers.
For engineers reviewing the MAX16061BTP+T datasheet, MAX16061BTP+T pinout, MAX16061BTP+T application, or MAX16061BTP+T equivalent, key selection considerations include its six-rail monitoring capability, factory-preset threshold configuration (3.3V/ADJ/ADJ/1.8V/ADJ/ADJ), -40°C to +125°C operation, watchdog enable/disable via WDI pin, and margin testing support via MARGIN input.
Technical Context
The MAX16061BTP+T implements six independent voltage comparators with 1% accuracy over temperature, each driving an open-drain output with internal 30µA pullup to VCC. Its RESET output asserts when any monitored rail falls below its threshold or MR is pulled low, remaining asserted for ≥140ms after all rails recover and MR deasserts.
It integrates a watchdog timer with 1.6s typical timeout and 54s startup delay; WDI unconnected disables it. Threshold tolerance (5% or 10%) is selected via TOL pin, and reset timeout is either fixed (SRT = VCC) or capacitor-adjustable (CSRT to GND).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Rails | Six independent inputs (IN1–IN6), configured as 3.3V/ADJ/ADJ/1.8V/ADJ/ADJ per Table 1 |
| Threshold Accuracy | ±1% over -40°C to +125°C - enables precise brown-out detection without calibration |
| Reset Timeout | Min 140ms (internal) or adjustable via external capacitor on SRT pin - supports system boot timing compliance |
| Watchdog Timeout | 1.12s to 2.40s (typ 1.6s) - provides reliable firmware hang detection with 54s startup allowance |
| Supply Range | VCC = 1.0V to 5.5V - guarantees RESET assertion down to VCC = 1V for ultra-low-power recovery |
| Output Type | Six open-drain OUT_ pins + active-low RESET, each with 30µA internal pullup - eliminates six external resistors |
| Operating Temp | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX16061BTP+T uses a 20-pin thin QFN package (4mm × 4mm, exposed pad), RoHS-compliant and lead-free (+T denotes tape-and-reel packaging).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN6 | Monitored voltage inputs | Accept fixed (3.3V/2.5V/1.8V) or adjustable (down to 0.4V) thresholds; unused inputs must be tied above threshold |
| OUT1–OUT6 | Independent open-drain outputs | Assert low when corresponding INx falls below threshold; 30µA internal pullup to VCC eliminates external resistors |
| RESET | Active-low system reset output | Asserts if any INx fails or MR is pulled low; remains asserted ≥140ms after full recovery and MR release |
| MR | Active-low manual reset input | Pull low to force RESET assertion; internally pulled up to VCC via 20kΩ resistor |
| SRT | Reset timeout setting | Connect to VCC for 140ms min timeout; connect capacitor to GND for adjustable timeout (tRP = 2.06M × CSRT) |
| WDI | Watchdog timer input | Rising/falling edge resets timer; unconnected disables watchdog; leakage <200nA prevents false triggering |
| MARGIN | Active-low margin test disable | Pull low to force all OUT_ and RESET high - enables voltage margining without affecting supervision logic |
| TOL | Threshold tolerance select | Ground = 5% tolerance; VCC = 10% tolerance - configures hysteresis and accuracy trade-off |
| VCC | Unmonitored power supply | Power source for IC; outputs guaranteed functional down to VCC = 1V |
| GND / EP | Ground reference / thermal pad | EP internally connected to GND; must be soldered to PCB ground plane for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| 1% threshold accuracy over temperature | Enables reliable undervoltage detection across automotive and industrial thermal ranges without recalibration |
| Internal 30µA pullups on all outputs | Removes need for six external pullup resistors, reducing BOM count and board space in dense multirail systems |
| Capacitor-adjustable reset timeout | Supports custom reset hold times (e.g., for FPGA configuration or EEPROM write cycles) via single external capacitor |
| Watchdog timer with 54s startup delay | Allows safe initialization of slow-starting processors or bootloaders before watchdog monitoring begins |
| MARGIN input for active deassertion | Permits real-time voltage margin testing by forcing all outputs high without disabling supervision circuitry |
| Pin-selectable 5%/10% threshold tolerance | Optimizes noise immunity vs. detection sensitivity based on system noise profile and rail stability requirements |
Applications
| Server Power Sequencing | Automotive ADAS Domain Controller |
|---|---|
|
Use Scenario: Coordinating startup/shutdown of CPU, memory, I/O, and GPU rails in dual-socket server motherboards. IC Role / Device Role / Timing Role: Hex-voltage supervisor monitors 3.3V, 2.5V, 1.8V, and three adjustable rails (e.g., 1.2V core, 0.9V I/O, 1.0V SerDes), asserting RESET only after all are stable. Use Value: Prevents firmware execution on partially powered subsystems; 1% accuracy ensures deterministic timing across temperature extremes. |
Use Scenario: Ensuring clean power-up of radar processor, camera SoC, and CAN transceivers in autonomous driving ECUs. IC Role / Device Role / Timing Role: Monitors 3.3V sensor bias, 1.8V interface, 1.2V core, 0.9V DDR, and two adjustable rails (e.g., 5V analog front-end, 3.3V CAN), with RESET held until all meet spec. Use Value: Meets ASIL-B functional safety requirements via deterministic multi-rail validation and watchdog coverage. |
| Industrial PLC Backplane | Networking Switch ASIC Supervision |
|
Use Scenario: Validating isolated 24V, 12V, 5V, 3.3V, 2.5V, and 1.8V rails powering FPGA, ADCs, DACs, and communication interfaces. IC Role / Device Role / Timing Role: Provides independent fault signaling per rail (OUT1–OUT6) plus global RESET, enabling targeted diagnostics and graceful degradation. Use Value: Eliminates need for six discrete supervisors; -40°C to +125°C rating supports uncooled cabinet deployment. |
Use Scenario: Supervising complex multivoltage ASICs in 10G/25G Ethernet switches requiring precise sequencing of core, I/O, SerDes, and auxiliary supplies. IC Role / Device Role / Timing Role: Monitors six critical rails (e.g., 0.85V core, 1.2V SerDes, 1.8V PHY, 3.3V management, 5V fans, 12V pumps) with margin test support during production burn-in. Use Value: MARGIN input allows voltage stress testing without disrupting RESET assertion logic-critical for high-volume manufacturing test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16061ATP+T | Factory preset as 3.3V/2.5V/ADJ/1.8V/ADJ/ADJ (vs. MAX16061BTP+T's 3.3V/ADJ/ADJ/1.8V/ADJ/ADJ); identical pinout and specs | Fixed thresholds differ on IN2 and IN3 - suited for systems with known 2.5V rail but same adjustable flexibility elsewhere | Select MAX16061ATP+T when 2.5V monitoring is required on second rail; otherwise MAX16061BTP+T offers broader adjustability on IN2/IN3 |
| TPS3808G33DBVR | Single-rail supervisor (3.3V only); no multi-rail monitoring, no watchdog, no MARGIN input; SOT-23-6 package | Only monitors one voltage; requires five additional supervisors to match MAX16061BTP+T's six-rail capability | Use only for simple single-rail applications; not a functional substitute for hex-voltage supervision |
Compared with MAX16061ATP+T, MAX16061BTP+T provides greater flexibility on IN2/IN3 thresholds at no cost to accuracy or timing; compared with TPS3808G33DBVR, it delivers six-fold integration, watchdog coverage, and margin test capability in one compact QFN.
Availability
MAX16061BTP+T is available at Aetrix Electronics and suitable for server power sequencing, automotive ADAS domain controllers, and industrial PLC backplanes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16061BTP+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX16060/MAX16061/MAX16062 family targets complex multivoltage systems requiring high-accuracy, low-power, and space-constrained supervision - especially where six independent rails must be validated with deterministic timing and watchdog coverage.
FAQ
What voltage thresholds does MAX16061BTP+T monitor by default?
MAX16061BTP+T is factory-configured to monitor six rails as follows: IN1 = 3.3V, IN2 = adjustable (0.394V typ, TOL = GND), IN3 = adjustable (0.394V typ), IN4 = 1.8V, IN5 = adjustable, IN6 = adjustable. This configuration supports systems requiring fixed main rails plus flexible low-voltage monitoring.
How is the reset timeout set on MAX16061BTP+T?
MAX16061BTP+T offers two reset timeout modes: fixed 140ms minimum (by connecting SRT pin to VCC), or adjustable via external capacitor from SRT to GND. The timeout is calculated as tRP = 2.06 × 10⁶ Ω × CSRT (F), enabling precise hold times for FPGA configuration or flash programming.
Can MAX16061BTP+T be used in automotive applications?
Yes - MAX16061BTP+T is fully specified from -40°C to +125°C, features 1% threshold accuracy over that range, and includes watchdog timer and margin test functionality required for ASIL-B–capable power supervision in ADAS domain controllers and body control modules.
Does MAX16061BTP+T require external pullup resistors on its outputs?
No - MAX16061BTP+T integrates 30µA internal pullups on all six OUT_ pins and the RESET pin, eliminating the need for external pullup resistors in standard 3.3V/5V logic interfacing. External pullups to voltages up to 5.5V are supported but optional.
How is the watchdog timer enabled or disabled on MAX16061BTP+T?
The watchdog timer in MAX16061BTP+T is disabled by leaving the WDI pin unconnected - its internal 400nA detector recognizes this state. To enable, drive WDI with clean rising/falling edges at intervals less than 1.12s–2.40s; the timer resets on each edge and asserts RESET if timeout is exceeded.
MAX16061BTP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 6
- Voltage - Threshold:
- 6 Selectable Threshold Combinations
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms/Adjustable Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (4x4)
MAX16061BTP+T FAQ
1.How can I place an order for MAX16061BTP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16061BTP+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX16061BTP+T reliable?
The price and inventory of MAX16061BTP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16061BTP+T is usually 5 days.
3.What payment methods are accepted for MAX16061BTP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16061BTP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16061BTP+T?
MAX16061BTP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16061BTP+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX16061BTP+T?
For technical support, including MAX16061BTP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16061BTP+T requirements.
6.How does Aetrix verify that MAX16061BTP+T is sourced from the original manufacturer or authorized distributors?
All MAX16061BTP+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX16061BTP+T meets industry standards.
7.What is the process for return or replacement of MAX16061BTP+T?
All MAX16061BTP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16061BTP+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX16061BTP+T part is unused and in its original packaging.
Return procedure for MAX16061BTP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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